Frame works

http://www.aqa.org.uk/subjects/english/as-and-a-level/english-language-7701-7702/subject-content-as/language-varieties/methods-of-language-analysis

Phonetics, phonology and prosodics: how speech sounds and effects are articulated and analysed.

Graphology: the visual aspects of textual design and appearance.

Lexis and semantics: the vocabulary of English, including social and historical variation.

Grammar, including morphology: the structural patterns and shapes of English at sentence, clause, phrase and word level.

Pragmatics: the contextual aspects of language use.

Discourse: extended stretches of communication occurring in different genres, modes and contexts.